BL / BLM Series BEARLOK Locknuts

BL (inch) and BLM (metric) BEARLOK locknuts lock mechanically rather than with a polymer insert. Socket head cap screws draw a hardened compression ring down over a slit, externally tapered nut body, clamping the full 360° of the shaft thread. The result is an all-metal lock that will not relax at temperature, distributes its grip evenly enough to run dynamically balanced at speed, and releases cleanly for service.

BL / BLM Series Specifications

• Part numbers: BL-02 through BL-40; BLM-02 through BLM-40 (61 sizes stocked)
• Bore / shaft size (inch): 0.586 in to 7.847 in
• Outside diameter (inch): 1.24 in to 9.84 in
• Bore / shaft size (metric): 15 mm to 200 mm
• Outside diameter (metric): 31.5 mm to 249.9 mm
• Material & temperature: Three-piece carbon steel and hardened alloy construction, black oxide with wax finish; 300°F maximum operating temperature
• Standards: BL to ANSI/ABMA 8.2-1999, BLM to ISO 2982-2:2013(E); made in USA, RoHS

Applications

High-speed spindles, dynamically balanced rotating assemblies, hot running equipment and any bearing seat where a polymer locking element is unacceptable.

Related Whittet-Higgins Series

• BLAS Series BEARLOK Assembly Sockets
• BLC Series BEARLOK Locking Collars – Keyless Shrink Disc
• TLN / TLM Series TANGENTLOK Locknuts
• BHT / BMT Series BEARHUG Locknuts – All-Metal, High Temperature
• CNB / CNC / CNF / CNM / CNS Series CLAMPNUTS

Apollo is an authorized Whittet-Higgins distributor. Every part on this page is genuine Whittet-Higgins, manufactured in the USA. Need a size that is not listed, or help matching a locknut to its lockwasher and assembly socket? Contact our team.